当前位置: 首页>>代码示例>>C++>>正文

C++ devdir函数代码示例

本文整理汇总了C++中devdir函数的典型用法代码示例。如果您正苦于以下问题：C++ devdir函数的具体用法？C++ devdir怎么用？C++ devdir使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了devdir函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: dupgen

static int
dupgen(Chan *c, char *, Dirtab*, int, int s, Dir *dp)
{
	Fgrp *fgrp = up->env->fgrp;
	Chan *f;
	static int perm[] = { 0400, 0200, 0600, 0 };
	int p;
	Qid q;

	if(s == DEVDOTDOT){
		devdir(c, c->qid, ".", 0, eve, DMDIR|0555, dp);
		return 1;
	}
	if(s == 0)
		return 0;
	s--;
	if(s/2 > fgrp->maxfd)
		return -1;
	if((f=fgrp->fd[s/2]) == nil)
		return 0;
	if(s & 1){
		p = 0400;
		sprint(up->genbuf, "%dctl", s/2);
	}else{
		p = perm[f->mode&3];
		sprint(up->genbuf, "%d", s/2);
	}
	mkqid(&q, s+1, 0, QTFILE);
	devdir(c, q, up->genbuf, 0, eve, p, dp);
	return 1;
}
开发者ID:8l，项目名称:inferno，代码行数:31，代码来源:devdup.c

示例2: srvgen

static int
srvgen(Chan *c, char *name, Dirtab *tab, int ntab, int s, Dir *dp)
{
	SrvFile *f;

	USED(name);
	USED(tab);
	USED(ntab);

	if(s == DEVDOTDOT){
		devdir(c, c->qid, "#s", 0, eve, 0555, dp);
		return 1;
	}
	f = c->aux;
	if((c->qid.type & QTDIR) == 0){
		if(s > 0)
			return -1;
		devdir(c, f->qid, f->name, f->length, f->user, f->perm, dp);
		return 1;
	}

	for(f = f->entry; f != nil; f = f->entry){
		if(s-- == 0)
			break;
	}
	if(f == nil)
		return -1;

	devdir(c, f->qid, f->name, f->length, f->user, f->perm, dp);
	return 1;
}
开发者ID:8l，项目名称:inferno，代码行数:31，代码来源:devsrv.c

示例3: pipegen

static int
pipegen(Chan *c, char *name, Dirtab *tab, int ntab, int i, Dir *dp)
{
	int id, len;
	Qid qid;
	Pipe *p;

	USED(name);
	if(i == DEVDOTDOT){
		devdir(c, c->qid, "#|", 0, eve, 0555, dp);
		return 1;
	}
	i++;	/* skip . */
	if(tab==0 || i>=ntab)
		return -1;
	tab += i;
	p = c->aux;
	switch(NETTYPE(tab->qid.path)){
	case Qdata0:
		len = qlen(p->q[0]);
		break;
	case Qdata1:
		len = qlen(p->q[1]);
		break;
	default:
		len = tab->length;
		break;
	}
	id = NETID(c->qid.path);
	qid.path = NETQID(id, tab->qid.path);
	qid.vers = 0;
	qid.type = QTFILE;
	devdir(c, qid, tab->name, len, eve, tab->perm, dp);
	return 1;
}
开发者ID:AndreasBriese，项目名称:node9，代码行数:35，代码来源:devpipe.c

示例4: envgen

static int
envgen(Chan *c, char *name, Dirtab*, int, int s, Dir *dp)
{
	Egrp *eg;
	Evalue *e;

	if(s == DEVDOTDOT){
		devdir(c, c->qid, "#e", 0, eve, DMDIR|0775, dp);
		return 1;
	}

	eg = envgrp(c);
	rlock(eg);
	if(name != nil)
		e = envlookup(eg, name, -1);
	else if(s < eg->nent)
		e = &eg->ent[s];
	else
		e = nil;
	if(e == nil || name != nil && (strlen(e->name) >= sizeof(up->genbuf))) {
		runlock(eg);
		return -1;
	}

	/* make sure name string continues to exist after we release lock */
	kstrcpy(up->genbuf, e->name, sizeof up->genbuf);
	devdir(c, e->qid, up->genbuf, e->len, eve, 0666, dp);
	runlock(eg);
	return 1;
}
开发者ID:srk-cmu，项目名称:9problems，代码行数:30，代码来源:devenv.c

示例5: pipestat

static int pipestat(struct chan *c, uint8_t * db, int n)
{
	Pipe *p;
	struct dir dir;
	struct dirtab *tab;
	int perm;

	p = c->aux;
	tab = p->pipedir;

	switch (NETTYPE(c->qid.path)) {
		case Qdir:
			devdir(c, c->qid, ".", 0, eve, DMDIR | 0555, &dir);
			break;
		case Qdata0:
			perm = tab[1].perm;
			perm |= qreadable(p->q[0]) ? DMREADABLE : 0;
			perm |= qwritable(p->q[0]) ? DMWRITABLE : 0;
			devdir(c, c->qid, tab[1].name, qlen(p->q[0]), eve, perm, &dir);
			break;
		case Qdata1:
			perm = tab[2].perm;
			perm |= qreadable(p->q[1]) ? DMREADABLE : 0;
			perm |= qwritable(p->q[1]) ? DMWRITABLE : 0;
			devdir(c, c->qid, tab[2].name, qlen(p->q[1]), eve, perm, &dir);
			break;
		default:
			panic("pipestat");
	}
	n = convD2M(&dir, db, n);
	if (n < BIT16SZ)
		error(ENODATA, ERROR_FIXME);
	return n;
}
开发者ID:GanShun，项目名称:akaros，代码行数:34，代码来源:pipe.c

示例6: srvgen

static int
srvgen(Chan *c, char*, Dirtab*, int, int s, Dir *dp)
{
	Srv *sp;
	Qid q;

	if(s == DEVDOTDOT){
		devdir(c, c->qid, "#s", 0, eve, 0555, dp);
		return 1;
	}

	qlock(&srvlk);
	for(sp = srv; sp && s; sp = sp->link)
		s--;

	if(sp == 0) {
		qunlock(&srvlk);
		return -1;
	}

	mkqid(&q, sp->path, 0, QTFILE);
	/* make sure name string continues to exist after we release lock */
	kstrcpy(up->genbuf, sp->name, sizeof up->genbuf);
	devdir(c, q, up->genbuf, 0, sp->owner, sp->perm, dp);
	qunlock(&srvlk);
	return 1;
}
开发者ID:0intro，项目名称:enhanced-plan9，代码行数:27，代码来源:devsrv.c

示例7: envgen

static int
envgen(Chan *c, char *name, Dirtab *d, int nd, int s, Dir *dp)
{
	Egrp *eg;
	Evalue *e;

	USED(name);
	USED(d);
	USED(nd);
	if(s == DEVDOTDOT){
		devdir(c, c->qid, "#e", 0, eve, DMDIR|0775, dp);
		return 1;
	}
	eg = up->env->egrp;
	qlock(&eg->l);
	for(e = eg->entries; e != nil && s != 0; e = e->next)
		s--;
	if(e == nil) {
		qunlock(&eg->l);
		return -1;
	}
	/* make sure name string continues to exist after we release lock */
	kstrcpy(up->genbuf, e->var, sizeof up->genbuf);
	devdir(c, e->qid, up->genbuf, e->len, eve, 0666, dp);
	qunlock(&eg->l);
	return 1;
}
开发者ID:AndreasBriese，项目名称:node9，代码行数:27，代码来源:devenv.c

示例8: pipegen

static int
pipegen(Chan *c, char*, Dirtab *tab, int ntab, int i, Dir *dp)
{
	Qid q;
	int len;
	Pipe *p;

	if(i == DEVDOTDOT){
		devdir(c, c->qid, "#|", 0, eve, DMDIR|0555, dp);
		return 1;
	}
	i++;	/* skip . */
	if(tab==0 || i>=ntab)
		return -1;

	tab += i;
	p = c->aux;
	switch((ulong)tab->qid.path){
	case Qdata0:
		len = qlen(p->q[0]);
		break;
	case Qdata1:
		len = qlen(p->q[1]);
		break;
	default:
		len = tab->length;
		break;
	}
	mkqid(&q, NETQID(NETID(c->qid.path), tab->qid.path), 0, QTFILE);
	devdir(c, q, tab->name, len, eve, p->perm, dp);
	return 1;
}
开发者ID:Nurb432，项目名称:plan9front，代码行数:32，代码来源:devpipe.c

示例9: pipestat

static int
pipestat(Chan *c, uchar *db, int n)
{
	Pipe *p;
	Dir dir;

	p = c->aux;

	switch(NETTYPE(c->qid.path)){
	case Qdir:
		devdir(c, c->qid, ".", 0, eve, DMDIR|0555, &dir);
		break;
	case Qdata0:
		devdir(c, c->qid, "data", qlen(p->q[0]), eve, p->perm, &dir);
		break;
	case Qdata1:
		devdir(c, c->qid, "data1", qlen(p->q[1]), eve, p->perm, &dir);
		break;
	default:
		panic("pipestat");
	}
	n = convD2M(&dir, db, n);
	if(n < BIT16SZ)
		error(Eshortstat);
	return n;
}
开发者ID:Nurb432，项目名称:plan9front，代码行数:26，代码来源:devpipe.c

示例10: envgen

static int
envgen(Chan *c, char *name, Dirtab* dir, int i, int s, Dir *dp)
{
	Proc *up = externup();
	Egrp *eg;
	Evalue *e;

	if(s == DEVDOTDOT){
		devdir(c, c->qid, "#e", 0, eve, DMDIR|0775, dp);
		return 1;
	}

	eg = envgrp(c);
	rlock(&eg->rwl);
	e = 0;
	if(name)
		e = envlookup(eg, name, -1);
	else if(s < eg->nent)
		e = eg->ent[s];

	if(e == 0) {
		runlock(&eg->rwl);
		return -1;
	}

	/* make sure name string continues to exist after we release lock */
	kstrcpy(up->genbuf, e->name, sizeof up->genbuf);
	devdir(c, e->qid, up->genbuf, e->len, eve, 0666, dp);
	runlock(&eg->rwl);
	return 1;
}
开发者ID:Requaos，项目名称:harvey，代码行数:31，代码来源:devenv.c

示例11: flash2gen

static int
flash2gen(Chan *c, ulong p, Dir *dp)
{
	Flashpart *fp;
	Flash *f;
	Qid q;
	int mode;

	f = flash.card[c->dev];
	fp = &f->part[PART(p)];
	if(fp->name == nil)
		return 0;
	mkqid(&q, p, 0, QTFILE);
	switch(TYPE(p)){
	case Qdata:
		mode = 0660;
		if(f->write == nil)
			mode = 0440;
		devdir(c, q, fp->name, fp->end-fp->start, eve, mode, dp);
		return 1;
	case Qctl:
		snprint(up->genbuf, sizeof(up->genbuf), "%sctl", fp->name);
		devdir(c, q, up->genbuf, 0, eve, 0660, dp);
		return 1;
	default:
		return -1;
	}
}
开发者ID:8l，项目名称:inferno，代码行数:28，代码来源:devflash.c

示例12: vcongen

static int
vcongen(Chan *c, char *d, Dirtab* dir, int i, int s, Dir *dp)
{
	Proc *up = externup();
	Qid q;
	int t = TYPE(c->qid);
	int vdidx = DEV(c->qid);
	if(vdidx >= nvcon)
		error(Ebadarg);
	switch(t){
	case Qtopdir:
		if(s == DEVDOTDOT){
			q = (Qid){QID(0, Qtopdir), 0, QTDIR};
			snprint(up->genbuf, sizeof up->genbuf, "#%C", vcondevtab.dc);
			devdir(c, q, up->genbuf, 0, eve, DMDIR|0555, dp);
			return 1;
		}
		return devgen(c, nil, topdir, nelem(topdir), s, dp);
	case Qvirtcon:
		if(s == DEVDOTDOT){
			q = (Qid){QID(0, Qtopdir), 0, QTDIR};
			snprint(up->genbuf, sizeof up->genbuf, "#%C", vcondevtab.dc);
			devdir(c, q, up->genbuf, 0, eve, DMDIR|0555, dp);
			return 1;
		}
		if(s >= nvcon)
			return -1;
		snprint(up->genbuf, sizeof up->genbuf, vcons[s]->devname);
		q = (Qid) {QID(s, Qvcpipe), 0, 0};
		devdir(c, q, up->genbuf, 0, eve, 0666, dp);
		return 1;
	}
	return -1;
}
开发者ID:dancrossnyc，项目名称:harvey，代码行数:34，代码来源:devvcon.c

示例13: cmd3gen

static int
cmd3gen(Chan *c, int i, Dir *dp)
{
	Qid q;
	Conv *cv;

	cv = cmd.conv[CONV(c->qid)];
	switch(i){
	default:
		return -1;
	case Qdata:
		mkqid(&q, QID(CONV(c->qid), Qdata), 0, QTFILE);
		devdir(c, q, "data", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qstderr:
		mkqid(&q, QID(CONV(c->qid), Qstderr), 0, QTFILE);
		devdir(c, q, "stderr", 0, cv->owner, 0444, dp);
		return 1;
	case Qctl:
		mkqid(&q, QID(CONV(c->qid), Qctl), 0, QTFILE);
		devdir(c, q, "ctl", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qstatus:
		mkqid(&q, QID(CONV(c->qid), Qstatus), 0, QTFILE);
		devdir(c, q, "status", 0, cv->owner, 0444, dp);
		return 1;
	case Qwait:
		mkqid(&q, QID(CONV(c->qid), Qwait), 0, QTFILE);
		devdir(c, q, "wait", 0, cv->owner, 0444, dp);
		return 1;
	}
}
开发者ID:8l，项目名称:inferno，代码行数:32，代码来源:devcmd.c

示例14: sd2gen

static int
sd2gen(Chan* c, int i, Dir* dp)
{
	Qid q;
	uvlong l;
	SDpart *pp;
	SDperm *perm;
	SDunit *unit;
	SDev *sdev;
	int rv;

	sdev = sdgetdev(DEV(c->qid));
	assert(sdev);
	unit = sdev->unit[UNIT(c->qid)];

	rv = -1;
	switch(i){
	case Qctl:
		mkqid(&q, QID(DEV(c->qid), UNIT(c->qid), PART(c->qid), Qctl),
			unit->vers, QTFILE);
		perm = &unit->ctlperm;
		if(emptystr(perm->user)){
			kstrdup(&perm->user, eve);
			perm->perm = 0644;	/* nothing secret in ctl */
		}
		devdir(c, q, "ctl", 0, perm->user, perm->perm, dp);
		rv = 1;
		break;

	case Qraw:
		mkqid(&q, QID(DEV(c->qid), UNIT(c->qid), PART(c->qid), Qraw),
			unit->vers, QTFILE);
		perm = &unit->rawperm;
		if(emptystr(perm->user)){
			kstrdup(&perm->user, eve);
			perm->perm = DMEXCL|0600;
		}
		devdir(c, q, "raw", 0, perm->user, perm->perm, dp);
		rv = 1;
		break;

	case Qpart:
		pp = &unit->part[PART(c->qid)];
		l = (pp->end - pp->start) * unit->secsize;
		mkqid(&q, QID(DEV(c->qid), UNIT(c->qid), PART(c->qid), Qpart),
			unit->vers+pp->vers, QTFILE);
		if(emptystr(pp->user))
			kstrdup(&pp->user, eve);
		devdir(c, q, pp->name, l, pp->user, pp->perm, dp);
		rv = 1;
		break;
	}

	decref(&sdev->r);
	return rv;
}
开发者ID:Mekapaedia，项目名称:inferno-rpi，代码行数:56，代码来源:devsd.c

示例15: rootgen

static int
rootgen(Chan *c, char *name, Dirtab *dt, int i, int s, Dir *dp)
{
	int t;
	Dirtab *d;
	Dirlist *l;

	switch((int)c->qid.path){
	case Qdir:
		if(s == DEVDOTDOT){
			devdir(c, (Qid){Qdir, 0, QTDIR}, "#/", 0, eve, 0555, dp);
			return 1;
		}
		return devgen(c, name, rootlist.dir, rootlist.ndir, s, dp);
	case Qboot:
		if(s == DEVDOTDOT){
			devdir(c, (Qid){Qdir, 0, QTDIR}, "#/", 0, eve, 0555, dp);
			return 1;
		}
		return devgen(c, name, bootlist.dir, bootlist.ndir, s, dp);
	default:
		if(s == DEVDOTDOT){
			if((int)c->qid.path < Qboot)
				devdir(c, (Qid){Qdir, 0, QTDIR}, "#/", 0, eve, 0555, dp);
			else
				devdir(c, (Qid){Qboot, 0, QTDIR}, "#/", 0, eve, 0555, dp);
			return 1;
		}
		if(s != 0)
			return -1;
		if((int)c->qid.path < Qboot){
			t = c->qid.path-1;
			l = &rootlist;
		}else{
			t = c->qid.path - Qboot - 1;
			l = &bootlist;
		}
		if(t >= l->ndir)
			return -1;
if(t < 0){
print("rootgen %llud %d %d\n", c->qid.path, s, t);
panic("whoops");
}
		d = &l->dir[t];
		devdir(c, d->qid, d->name, d->length, eve, d->perm, dp);
		return 1;
	}
}
开发者ID:0intro，项目名称:vx32，代码行数:48，代码来源:devroot.c


注：本文中的devdir函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。